Double. 1980(W) x 1980(L)mm This eco friendly, Healthy Living double sized duvet is filled with Eslon-treated fibre. The fibre has a active ingredient that reduces allergens, helping those who suffer from asthma and breathing difficulties get a great night's sleep. The warm and cosy 10.5 tog duvet from our high quality Comfort range, has a comfortable and durable polycotton cover for reliability.